Filter

My recent searches
Filter by:
Budget
to
to
to
Type
Skills
Languages
    Job State
    1,500 java draw wave jobs found

    ...power electronics engineer to design a commercial-grade EV motor controller for e-scooter, e-rickshaw, and e-loader applications. ## System Requirements: ### Input: * 40V – 90V DC (supports 48V, 60V, 72V battery systems) * Automotive voltage variation and transients must be handled ### Output: * 3-phase BLDC motor control * 60A continuous current, 80A peak ### Control Type: * Preferred: Sine wave or FOC (Field Oriented Control) * Smooth acceleration and low noise required --- ## Functional Features: * Throttle input (0–5V analog) * Brake input (cutoff + regenerative option if possible) * Reverse function * Hall sensor interface (mandatory) * Speed limiting and soft start --- ## Protection Requirements: * Overcurrent protection (hardware + software) * O...

    $400 Average bid
    $400 Avg Bid
    3 bids

    Looking for an experienced Android Java developer to build a complete app for an AR glasses device. The device connects to an Android phone via USB-C. The app must: — Open a live USB UVC camera feed fullscreen on the glasses display — Apply real-time zoom from 1x to 10x with sharpness maintained — Apply real-time contrast enhancement — Apply real-time brightness adjustment — Apply edge detection outline mode — Apply colour filter modes — Read visible text aloud using OCR and text to speech — Simple on-screen menu to switch between features — Maintain minimum 30 FPS at all times SDKs provided: — — USB camera, zoom, image effects (Java API over C/C++ native libraries) — — glasses com...

    $365 Average bid
    $365 Avg Bid
    30 bids

    ... modern structure (not overly cluttered) Slightly rebellious edge (without being offensive or gimmicky) Think: a brand that serious anglers respect, but still feels raw and real. Logo Icon Concepts (choose one or combine subtly) A striking fish silhouette (bass preferred) mid-attack A hook or lure integrated into the design A line slash / motion effect to represent “havoc” or action A subtle wave or water texture Optional: distressed or sharp-edged elements for a rugged feel Avoid cartoonish or overly playful styles—this should feel strong and authentic. Typography Style Bold, uppercase lettering Slightly distressed or custom lettering is ideal Strong readability at all sizes (especially small for hats) “REEL HAVOC” should be the dominant text ...

    $124 Average bid
    $124 Avg Bid
    33 bids

    Java Spring Boot Microservice — ITR Portal Login + AIS & 26AS Data Fetch Project Type: Backend Microservice Development Timeline: 4–6 Weeks (MVP) Date Posted: April 2026 Project Description Looking for an experienced Java developer to build a backend microservice that: Logs into the Income Tax e-Filing portal ( ) programmatically ( We have python based script we will share the script to login) Extracts the session token post-login Fetches AIS (Annual Information Statement) and Form 26AS from the TRACES portal ( ) Exposes the data via a REST API secured with JWT The service must handle OTP/MFA relay, auto token refresh, and be built to scale horizontally. Key Requirements Java 21 + Spring Boot 3.x Redis for encrypted session/token caching (TTL-managed)...

    $441 Average bid
    $441 Avg Bid
    22 bids

    I have a short block of lyrics ready to be turned into a fully-sung AI performance, supported by an AI-generated music sheet. The piece has a very specific flow: it begins upbeat, then slides into a deliberate “speed-ramp” slowdown—think of energetic Beta/Gamma brain-wave pacing that gradually eases into the calm of Theta/Delta—before settling into a spoken-word, podcast-style section. For the outro, I want the exact reverse: the spoken cadence accelerates back through Delta/Theta and returns to the original lively tempo. Key preferences • Vocal character: warm, authentic folk timbre • Range: Alto throughout (no sudden jumps into soprano or bass) • Reference tracks: none supplied, so feel free to interpret within modern or traditional fo...

    $31 Average bid
    $31 Avg Bid
    2 bids

    ... modern structure (not overly cluttered) Slightly rebellious edge (without being offensive or gimmicky) Think: a brand that serious anglers respect, but still feels raw and real. Logo Icon Concepts (choose one or combine subtly) A striking fish silhouette (bass preferred) mid-attack A hook or lure integrated into the design A line slash / motion effect to represent “havoc” or action A subtle wave or water texture Optional: distressed or sharp-edged elements for a rugged feel Avoid cartoonish or overly playful styles—this should feel strong and authentic. Typography Style Bold, uppercase lettering Slightly distressed or custom lettering is ideal Strong readability at all sizes (especially small for hats) “REEL HAVOC” should be the dominant text ...

    $34 Average bid
    Guaranteed
    $34
    63 entries

    ...findings into ten clear categories with exactly ten products each. Beauty, Sports and Kids must be represented, and you are free to introduce any other high-potential segments—as I’m open to all kinds of categories if the data supports them. Popularity trend will be our single deciding metric, so every product you pick should show clear upward momentum or sustained buzz. To establish that trend, draw evidence from three primary sources: • Online marketplaces (Amazon, Flipkart, Meesho, etc.) • Social media platforms (Instagram Reels, Facebook groups, YouTube Shorts, Google Trends) • Recent retail market surveys or published trade reports You may employ any additional reputable tools or dashboards that strengthen your case. For each product, in...

    $11 Average bid
    $11 Avg Bid
    2 bids

    ...responsiveness. Connection stability, automatic reconnection, and graceful handling of Bluetooth state changes are essential because the app will often run in the background. Deliverables • A self-contained React Native module (TypeScript or modern JS) that wraps all BLE operations and exports easy-to-use hooks or callbacks. • Native bridge code where needed (Swift/Objective-C for iOS, Kotlin/Java for Android) so the same JavaScript API works on both platforms. • Clear documentation and a short demo screen that prints live weight values, connection status, and battery level if the scale exposes it. • Unit tests or a simple test script proving that the module reconnects automatically after signal loss and remains within ±200 ms latency for updates...

    $20 / hr Average bid
    $20 / hr Avg Bid
    75 bids

    I need an experienced Ignition developer who can jump straight into two clear areas of my SCADA project: rich data-driven visualisation and robust alarm configuration. Data visualisation scope The screens must draw directly from our SQL databases and a handful of real-time sensor tags already exposed in Ignition. I will provide the queries and OPC tag paths; your job is to turn that information into intuitive front-end elements: line, bar and pie charts for live KPIs, tabular reports for historical trending, plus a set of data-entry forms to let operators create and edit production recipes. Everything has to feel cohesive inside Perspective and respect our existing colour palette. Alarm configuration scope In parallel, I need help setting up alarm conditions on key process var...

    $14 / hr Average bid
    $14 / hr Avg Bid
    24 bids
    Beginner English Learning App
    6 days left
    Verified

    ... current quiz scores, and weekly streaks; teachers or parents should be able to glance at the same data on a lightweight dashboard. Think Firebase or an equally quick cloud back-end for syncing, but I’m open to the stack you prefer as long as the data stays secure and the UI remains snappy on entry-level Android phones. Core deliverables (acceptance criteria): • Android APK + source (Kotlin or Java) compiled against the latest stable SDK • Audio-first lesson player with play / pause / seek and buffered streaming for low-bandwidth connections • Gesture-friendly interactive activities (drag-and-drop, tap to match) that tie directly to the audio content • Quiz engine supporting multiple-choice, fill-in-the-blank, and picture-based prompts, with real-...

    $157 Average bid
    $157 Avg Bid
    41 bids

    ...it has to be, but polished enough to feel professional. Core workflow • Patients open the app, review each doctor’s profile (photo, specialty, brief bio, available hours). • They pick an open slot and confirm the booking. • A push notification reminds them as the appointment approaches. That’s the heart of it. I am open to your preferred stack, yet an Android-native build in Kotlin or Java via Android Studio will likely keep things straightforward. If you already have experience wiring notifications through Firebase Cloud Messaging—or a comparable service—please mention it. Deliverables 1. Full Android source code with clear project structure. 2. Debuggable APK for testing and a signed release build. 3. Short hand-off guide ...

    $15 / hr Average bid
    $15 / hr Avg Bid
    16 bids

    need to record audio, save the file after 2 minutes, create new file, save the file after 2 minutes and so on. must run only in background. need to use Android Studio and Java. Not Kotlin

    $4 / hr Average bid
    $4 / hr Avg Bid
    8 bids

    ...economic benefits (cost savings, value-added by-products, livelihood effects) and recent technological advancements such as conservation tillage tools, biochar production, in-field mechanised collection or residue-based bioenergy systems. I am aiming for a rigorous academic tone backed by up-to-date peer-reviewed sources, regional case studies and clear data visualisation where relevant. Please draw primarily on journal articles and recognised institutional reports (FAO, ICAR, CIMMYT, etc.) published within roughly the last decade so the analysis reflects current practice and policy debate in countries like India, China, Bangladesh, Vietnam, and other key Asian producers. Comparisons to work from other continents can be used sparingly for context, but the spotlight must remai...

    $122 Average bid
    $122 Avg Bid
    9 bids

    ...birth, ID numbers, etc.) has to be filled. Basic validation—presence checks and simple format rules—is sufficient; anything more can stay out of scope for now. • The end result should feel native: once the API call succeeds, the user sees the customer screen with every mapped field in place and can immediately continue the usual onboarding process. Deliverables I expect: 1. Integration code (Java / PL-SQL wrapper or preferred Flexcube extension) committed to a Git repository. 2. Mapping document that shows each JSON field and its corresponding Flexcube column. 3. Simple test script or Postman collection proving the end-to-end flow. 4. Brief deployment notes so our ops team can move it from UAT to production without a hitch. If you’ve worked wi...

    $1433 Average bid
    $1433 Avg Bid
    80 bids

    ...cover. We plan to use Glulam Beams for the sides and one end with the other end connecting to an existing structure and intersecting the roof line. This structure will be approximately 21' in width and 22' in length. The length of the structure will intersect and existing brick wall and roofline making the ridge beam being 27-30 ft in length depending on overall final height of structure. I can draw up the plans but need to get detailed plans with building code and load considerations in place. Key Requirements: - Use of wood for the patio cover framework - Glulam beams, 8x8 (or larger) cedar posts and 4x6 cedar rafters - Roofing with shingles - Rustic design aesthetic Ideal Skills and Experience: - Proficiency in working with glulam beams and wood - Experience in...

    $683 Average bid
    Local
    $683 Avg Bid
    4 bids

    I am looking someone who is good in doing designing, like have hands of experience on vector file, tracing using software corel draw, photoshop, basically.. we need someone who can deliver us the vector file. Let me know. If someone interested. Have to pass through a quick demo to qualify. We have big project coming up. That will cost around $500 and above. So bid only if you are ready for a quick demo. Otherwise don't. I will not allow someone who will say, pay me than I will do.. it's a sample or a 15min work.

    $273 Average bid
    $273 Avg Bid
    21 bids

    ...comprehensive learning platform designed for beginners starting from age 8, as well as students with no prior technical background. The goal is to make complex concepts simple, interactive, and enjoyable to learn. Scope of Work: Create structured video tutorial series for one or more of the following technologies: HTML, CSS, JavaScript, jQuery PHP, MySQL, WordPress React, Angular, Node.js C, C++, Java Oracle, PostgreSQL, MongoDB React Native, Android Development Other relevant programming technologies Key Requirements: Ability to explain concepts in a simple, clear, and beginner-friendly manner Content should be suitable for young learners (8+ years) and absolute beginners Step-by-step teaching approach with real-world examples and practical demonstrations Use of visual aids,...

    $12 Average bid
    $12 Avg Bid
    11 bids

    ...Requirements: Integration of dedicated RTU system Monitoring of: MW / MVAR Voltage Breaker status Telecommunications: Design communication pathway to SCE EMS: T1 circuit interface Signal architecture Termination design Deliverables: Communication diagrams RTU wiring diagrams Data point mapping list 3.5 DAS / EMS INTEGRATION SUPPORT Engineer shall coordinate with DAS/EMS provider (e.g., Wave, AlsoEnergy, etc.) to: Ensure compatibility with: RTU system Utility telemetry requirements Provide: Data mapping architecture Integration requirements for DER monitoring 3.6 SCE DESIGN PACKAGE (SUBMITTAL READY) Engineer shall produce a complete SCE-compliant design package, including: IFC Single Line Diagrams Protection and control schematics Equipment speci...

    $10997 Average bid
    $10997 Avg Bid
    9 bids

    I need the Live Map / tracking feature completed on the admin portal. The app will send GPS/location data into Supabase. Your job is to build the website side so admins can view it properly. Requirements: * Use Leaflet + OpenStreetMap, not Google Maps * Show active drivers on the map * Show each driver’s latest location * Draw the route/path for a selected shift * Detect stops where the driver stayed within about 50–100 metres for 3+ minutes * Show stop circles on the map * Clicking a stop circle should open a small summary popup/card Popup/card should show: * driver name * vehicle rego * shift start time * current shift duration * stop duration * stop start/end time * last GPS update * break status if available * button/link to full shift details Data should come ...

    $172 Average bid
    $172 Avg Bid
    119 bids

    ...videos, draft thumbnails or descriptions, and keep an eye on comments and revenue without leaving the app. A clean Material-you interface, smooth performance on the latest Android releases, and Play-Store-ready compliance are all must-haves. For this first engagement I’m looking for a developer who can: • translate the concept into a solid feature roadmap, • build the Android app in either Kotlin or Java (your preference), • integrate the necessary YouTube OAuth flow and API endpoints, • deliver well-commented source code, an installable APK, and brief setup documentation. The work will be considered complete once the source compiles without errors, the main dashboard successfully pulls a user’s channel analytics, and the basic upload/schedule fu...

    $404 Average bid
    $404 Avg Bid
    47 bids

    ...screen reader) is active. Here is what I expect: • Add or correct contentDescription attributes, accessibility labels and hints so that controls are spoken in a logical order. • Ensure state changes—errors, success messages, toggles—are conveyed via accessibility events without relying on visual cues alone. • Keep visual layout untouched; all work should sit cleanly in the XML and Kotlin/Java layers. • Provide a short video or emulator capture showing TalkBack reading through a typical form flow, plus the updated source files or a merge request. If you regularly validate with TalkBack, Accessibility Scanner or Espresso accessibility tests, this will be a straightforward engagement. Let me know the Android versions you usually test aga...

    $353 Average bid
    $353 Avg Bid
    17 bids

    I am looking for someone to create a technical drawing in Exploded Isometric Projection of a generic fixture or fastener. I do not have a CAD file available, so the entire drawing will need to be designed. The drawing should be relatively simple, as It is to be used for high school students learning to draw sectioned orthogonal views by hand, so I am sure it won't take too long to put together. i would also like it as a sectioned orthogonal view as a sample answer. If you're an experienced draftsman and can quickly create this drawing for me, please get in touch! Attached are some sample images of what I would like.

    $112 Average bid
    $112 Avg Bid
    76 bids

    ...power electronics engineer to design a commercial-grade EV motor controller for e-scooter, e-rickshaw, and e-loader applications. ## System Requirements: ### Input: * 40V – 90V DC (supports 48V, 60V, 72V battery systems) * Automotive voltage variation and transients must be handled ### Output: * 3-phase BLDC motor control * 60A continuous current, 80A peak ### Control Type: * Preferred: Sine wave or FOC (Field Oriented Control) * Smooth acceleration and low noise required --- ## Functional Features: * Throttle input (0–5V analog) * Brake input (cutoff + regenerative option if possible) * Reverse function * Hall sensor interface (mandatory) * Speed limiting and soft start --- ## Protection Requirements: * Overcurrent protection (hardware + software) * O...

    $457 Average bid
    $457 Avg Bid
    7 bids

    I maintain a Java-based backend that exposes a small REST interface for sensor and other device data. A few legacy issues are breaking current GET and POST calls and I also need several new endpoints added. Each confirmed bug you resolve is paid at ₹1,200, and the same rate applies if you prefer to log time hourly instead. Scope • Diagnose and fix existing errors in the REST layer, services, or related model classes. • Add clean, well-documented GET and POST endpoints so devices can reliably push data and consumers can pull it back. • Ensure responses follow our current JSON schema and return the correct HTTP status codes. • Provide concise unit or integration tests that demonstrate each fix or new endpoint working end-to-end. Acceptance criteria A pu...

    $324 Average bid
    $324 Avg Bid
    56 bids

    I’m rolling out a new feature that touches both ends of our stack. On the backend we run Java 21 with Spring Boot micro-services, alongside a small Node.js/Python layer that exchanges events through Kafka. The frontend is split between an older Angular module and a newer React interface. The job is to design and code the complete feature, wiring it cleanly into every affected service and UI surface. You will: • Extend (or create) the relevant Spring Boot endpoints, making sure they publish and consume the right Kafka topics. • Update the Angular dashboard and the React SPA so the user experience is seamless across both frameworks. • Keep code idiomatic, unit-tested, and pushed to our Git repo via pull requests. Acceptance criteria • All API tests p...

    $19 / hr Average bid
    $19 / hr Avg Bid
    141 bids

    I am putting together a full-featured wellness application for Android that mirrors the experience of HealthifyMe, but focused on my own brand and feature set. The core of the build revolves around live tracking linked to three pillars: calorie tracking, detailed exercise logging, and personal...with live update capability • Scalable backend with documented API endpoints and basic admin access • Source code, build instructions, and a short hand-off walkthrough Acceptance criteria: each listed module must store data locally when offline, sync seamlessly when a connection returns, and maintain <1 s latency on messaging under typical loads. If this aligns with your expertise in Kotlin/Java, real-time databases, and fitness-oriented UX, I’m ready to review your...

    $1563 Average bid
    $1563 Avg Bid
    57 bids

    I’m creating an online store for cosmetic products and want the codebase to feel as professional as anything you would ship to production. The backend must be written in Java with Spring Boot, exposed through well-structured REST endpoints, and persist data in MySQL. On the client side I only need a clean, responsive interface built with plain HTML, CSS and vanilla JavaScript—no heavy frameworks—so that the focus stays on clear architecture rather than flashy UI libraries. Core features I expect: • Role-based authentication for Admin and Customer accounts, supporting registration, login and logout with secure password storage. • Admin dashboards to add, edit and retire products, plus view basic order information. • Customer-facing catalogue with...

    $246 Average bid
    $246 Avg Bid
    172 bids

    I’m expanding several engineering teams for top-tier MNCs and rapidly scaling tech start-ups and need skilled people who can jump in right away. The first seats I must fill are: • Software Developers who are fluent in React, Node, and/or Java. If you can architect front-end components in React, build robust APIs with Node, or craft enterprise-grade services in Java, you’re already on my shortlist. • Data Analysts & Data Engineers able to turn raw data into clean, actionable insights. Solid SQL skills are essential, and if you have experience with Python, Spark, or comparable tooling, that will be an added advantage. • UI/UX Designers who can translate complex product ideas into polished, user-centric interfaces, balancing aesthetics with ac...

    $52379 Average bid
    $52379 Avg Bid
    19 bids

    I need a series of well-researched blog posts that help readers make informed decisions about their health and overall wellness. Each piece should educate first, using clear explanations and up-to-date evidence rather than hype or marketing jargon. Please draw on credible studies, cite authoritative sources where relevant, and present the information in an engaging, reader-friendly flow. A solid grasp of keyword integration for organic search would be a bonus, but the priority is accuracy, clarity, and usefulness. Deliverables • Polished blog posts on health and wellness, written in an informative, educational tone • Concise source list or inline citations for any statistics or medical claims • Compelling headline, meta description, and sub-headings that m...

    $647 Average bid
    $647 Avg Bid
    21 bids

    I need a creative designer to draw a cat fur pattern on a cotton dress. The design should be: - Natural and random cat fur pattern - Realistic cat colors (e.g., brown, black, white) Ideal skills and experience: - Proficiency in fabric painting or drawing - Experience with realistic animal patterns - Attention to detail and creativity Please provide samples of similar work.

    $109 Average bid
    $109 Avg Bid
    61 bids

    ...authentication, real-time data synchronisation to our backend, and reliable push notifications. The server side is already live; you’ll consume our REST/JSON endpoints and make the tablet experience fully in step with the web version. Because this is a contract role I need someone who already has at least five years of hands-on APK work under Linux—comfortable with Android Studio, the Android SDK, Kotlin/Java, Git, and typical CI pipelines. You should be able to stand up a clean architecture, guide me on best practices for tablet UI/UX, and hand over production-ready code. Deliverables I’ll sign off on: • Compiled release-grade APK ready for Play Console internal testing • Complete, clean source code in a Git repo with build instructions that wor...

    $816 Average bid
    $816 Avg Bid
    10 bids

    ...quick-access buttons to the most-used modules. Smooth pull-to-refresh, badge counts, and Firebase push integration should mimic the existing behaviour exactly. 2. Profile – Students and staff need a tabbed layout that presents personal details, attendance records, and grades/performance, all pulled from our current REST endpoints. Data caching, photo upload, and simple edit forms already exist in Java and must be replicated in Dart without losing validation rules. 3. School Contacts & Calendar – For this first sprint I only need the staff directory portion live. Search, role filtering, click-to-call, and email links should work out of the box. The calendar view may stay read-only for now; it simply has to render the same event feed we already expose in JSON....

    $192 Average bid
    $192 Avg Bid
    101 bids

    hi, im looking for an artist that can draw like Cory Walker, mainly what his art looked like in the comic Invincible #132. i could pay around $40 per page Key requirements: - Digital art proficiency - Expertise in creating detailed line art - Experience with comic book character design, particularly humans Ideal skills and experience: - Strong portfolio in comic book art - Ability to meet deadlines and communicate effectively Please provide samples of relevant work. Looking forward to your bids!

    $42 Average bid
    $42 Avg Bid
    51 bids

    I need a solar power system installed for my off-grid tiny home in Fruitland, Utah. We anticipate a maximum daily energy draw of 10-15 kW. Key Requirements: - Off-grid solar power system - No battery storage needed - Experience with solar installations, especially for off-grid setups Ideal Skills and Experience: - Certification in solar panel installation - Knowledge of off-grid solar systems - Experience with energy consumption assessments - Familiarity with local regulations in Duchene County Please provide any relevant qualifications and past project examples in your bids.

    $10807 Average bid
    Local
    $10807 Avg Bid
    6 bids

    ...Android-only mobile app from concept to Google Play release. The exact domain is still flexible—e-commerce, social networking, productivity, or another category that makes strategic sense—so I’m looking for a developer who can help me shape the idea as well as code it. Here’s what I need from you: • Discovery & wireframing sessions to refine the core feature set • Clean, maintainable Kotlin or Java code that follows Android best practices • A modern UI built with Material Design components • Integration of essential services such as authentication, push notifications, analytics, and in-app purchases when relevant • End-to-end testing, including unit tests and UI tests, with clear test reports • Assistance with ...

    $31 Average bid
    $31 Avg Bid
    22 bids

    ...open—whether the final product supports e-commerce, social networking, education, or another category will be decided once we refine the concept together. Key functionality is equally flexible. Depending on the agreed use-case, the build may include fundamentals such as messaging, user profiles, a news feed, or any other feature set that fits the solution. Code should be written in Kotlin or modern Java within Android Studio, follow current Material Design guidelines, and be structured for easy maintenance and future feature expansion. Deliverables • Fully-tested APK and complete source code • Brief technical documentation outlining architecture, key libraries, and build steps • One walkthrough session to hand over the project and address ques...

    $283 Average bid
    $283 Avg Bid
    26 bids
    All-in-One Android App Build
    5 days left
    Verified

    ...and the practicality of everyday utilities. Think of it as one cohesive product where users can play, chat, share photos, connect with friends, and still reach for built-in tools that make daily life easier. Here is what I already know I need: in-app messaging, seamless photo sharing, and a robust friend-connection system. Because we’re targeting Android only, you’re free to lean into Kotlin or Java and make the most of Google-first services—Firebase for real-time chat and push, Play Games Services for leaderboards or achievements, and any modern Android Jetpack libraries that speed development while keeping the codebase clean. I’ll handle concept art and copy; you’ll take charge of architecture, clean UI/UX, feature implementation, and release-rea...

    $217 Average bid
    $217 Avg Bid
    20 bids

    ...consultation notes and recommendations anchored in current clinical guidelines. • Concise research briefs summarising best-practice findings, complete with citations. • Clear, engaging patient education resources—videos, hand-outs, or interactive content—tested for comprehension. Acceptance criteria • Advice aligns with recognised medical standards and includes cited references. • Research documents draw on up-to-date peer-reviewed literature. • Education materials score at or below a sixth-grade readability level and incorporate culturally sensitive language. When you reply, give me a snapshot of your relevant experience: the settings you’ve worked in, the audiences you’ve served, and any measurable impact you’ve m...

    $96 Average bid
    $96 Avg Bid
    15 bids

    ...structure Modify relationship directions Accuracy matters more than artistic creativity. --- EXAMPLE DIAGRAM INSTRUCTION #1 — UML STATE MACHINE DIAGRAM Example prompt: Draw a UML state machine diagram for a Library Management System. States: Available Borrowed Reserved Lost Requirements: Diamond layout Colored rounded rectangles Transition arrows with labels Internal activities Dark background Proper UML conventions Generous spacing without overlap Expected: Clean UML state machine Correct transitions Professional spacing High readability --- EXAMPLE DIAGRAM INSTRUCTION #2 — UML CLASS DIAGRAM Example prompt: Draw a complete UML class diagram for a Library Management System. Include: Book Member Librarian Loan Fine Searchable interface Relationship...

    $131 Average bid
    $131 Avg Bid
    9 bids

    I have a list of roughly 2 000 WhatsApp numbers and a single outreach I need pushed out in one wave: • a short, pre-written text • the same video appended to that text No images need personalisation and there is nothing else to customise per contact, but I do want reliable analytics. After the campaign I must be able to see who actually received the message and who opened it (standard WhatsApp delivery & read ticks or an equivalent exportable report). You may use any compliant solution or API you’re comfortable with—as long as accounts stay safe from spam bans and the send-out really reaches the full list. I will supply: • the contact spreadsheet (CSV or Excel) • the final text copy • the video file (MP4, <15 MB) Deliverables I ...

    $187 Average bid
    $187 Avg Bid
    31 bids
    Java REST API Bug Fixes -- 2
    5 days left
    Verified

    I maintain a Java-based backend that exposes a small REST interface for sensor and other device data. A few legacy issues are breaking current GET and POST calls and I also need several new endpoints added. Each confirmed bug you resolve is paid at ₹1,200, and the same rate applies if you prefer to log time hourly instead. Scope • Diagnose and fix existing errors in the REST layer, services, or related model classes. • Add clean, well-documented GET and POST endpoints so devices can reliably push data and consumers can pull it back. • Ensure responses follow our current JSON schema and return the correct HTTP status codes. • Provide concise unit or integration tests that demonstrate each fix or new endpoint working end-to-end. Acceptance criteria A pu...

    $8 / hr Average bid
    $8 / hr Avg Bid
    44 bids

    I maintain a Java-based backend that exposes a small REST interface for sensor and other device data. A few legacy issues are breaking current GET and POST calls and I also need several new endpoints added. Each confirmed bug you resolve is paid at ₹1,200, and the same rate applies if you prefer to log time hourly instead. Scope • Diagnose and fix existing errors in the REST layer, services, or related model classes. • Add clean, well-documented GET and POST endpoints so devices can reliably push data and consumers can pull it back. • Ensure responses follow our current JSON schema and return the correct HTTP status codes. • Provide concise unit or integration tests that demonstrate each fix or new endpoint working end-to-end. Acceptance criteria A pu...

    $8 / hr Average bid
    $8 / hr Avg Bid
    18 bids

    I have a small but time-sensitive task: I need the attached artwork rebuilt as a clean, fully-scalable vector and supplied as an EPS. Key details to match • Keep the smooth gradient inside the sun and in the top blue wave exactly as shown. • Make the lower blue wave a touch darker than the upper one, mirroring the reference. • Round off the bottom point of the sun so it feels softer—just a subtle curve, not a sharp tip. The graphic will be used in various digital contexts, so please organise your layers logically and make sure colours remain consistent when exported to web formats. Feel free to sample colours directly from the original image; I don’t have exact codes to provide. Deliverable • Final, print-ready EPS file (CS6-co...

    $90 Average bid
    $90 Avg Bid
    62 bids

    I’m looking for reliable help on a long-term 3D point-cloud project focused on autonomous-driving data. Your task is to label vehicles and pedestrians inside a 200 m × 200 m area, assigning consistent Track IDs whenever an object can be followed through consecutive frames and a fresh ID when it cannot. For each frame you will: • Draw clean, tightly-fitting 3D bounding boxes. • Skip 2D refinements—simply flag box visibility as required by the tool. • Review your own work to keep accuracy high before submission. Please include in your bid: 1. A brief summary of similar point-cloud projects you have completed. 2. Two or three sample screenshots that best showcase your annotation quality. 3. Your preferred pricing model (per frame, per obj...

    $15 / hr Average bid
    $15 / hr Avg Bid
    16 bids

    ...require a complete testing strategy. I need both manual exploratory passes and a solid automated regression pack to ensure every release ships with confidence. Here is what I’m expecting: • Manual coverage first, documenting test cases and edge scenarios that cannot yet be automated. • Automated suites written in Selenium for the web layer, Appium for iOS / Android builds, and JUnit for our Java-based desktop client. • Clear, human-readable reports and logs integrated into our existing CI pipeline (GitHub Actions). • A short hand-off session so my dev team can run and maintain the scripts without you. Acceptance criteria: 1. All critical user flows on every platform are covered by automated checks. 2. Failed test results surface in CI with act...

    $12 / hr Average bid
    $12 / hr Avg Bid
    25 bids

    ...play the instrumental track while scrolling the timed lyrics on-screen • let the singer record both audio and video of their performance, saving locally and shareable from within the app • generate a simple score at the end of each song so users can track improvements over time All screens should follow modern Material 3 guidelines and run smoothly on Android 10+. Kotlin is preferred, but Java is acceptable. I will provide the initial batch of instrumental tracks and timed-lyric files; please structure the project so that additional songs can be added later by dropping them into the correct folders or updating a small JSON manifest. Deliverables: 1. Play-store-ready APK and signed AAB 2. Clean, well-commented source code in a private Git repo 3. Brief READ...

    $603 Average bid
    $603 Avg Bid
    76 bids

    ...eye-catching poster design (digital + print-ready) • Clean, confident typography and layout • A clear and recognizable visual identity • A style that feels funky, artistic, and unique — but more refined and less gimmicky • Flexibility to fit different types of shows (festivals, clubs, community events) We’re based around a working lavender farm and play a lot of regional events, so there’s room to draw from natural, local, or cultural influences if that’s part of your style. Ideally, this would turn into an ongoing collaboration — we typically promote a couple of shows per month and rely heavily on artwork for social media and promotion. If this sounds like a fit, I’d love to share some of the posters I’ve created s...

    $108 Average bid
    $108 Avg Bid
    98 bids

    I'm looking for a skilled developer to create a desktop income tax calculator. Requirements: - Compatibility: Desktop only - Features: - Tax savings tips - Detailed breakdown by category - Export to PDF Ideal Skills: - Proficiency in desktop application development - Experience with financial software tools - Strong UI/UX design skills for user-friendly interfaces - Expertise...desktop income tax calculator. Requirements: - Compatibility: Desktop only - Features: - Tax savings tips - Detailed breakdown by category - Export to PDF Ideal Skills: - Proficiency in desktop application development - Experience with financial software tools - Strong UI/UX design skills for user-friendly interfaces - Expertise in at least one of the preferred programming languages: Python, ...

    $188 Average bid
    $188 Avg Bid
    51 bids

    ...genie character that now needs to come alive across our marketing touch-points. The task is to illustrate a fresh set of high-resolution, vector-ready poses—mainly friendly greetings, helpful gestures, and dynamic action moves—that we can drop straight into brochures, flyers, social posts, and even on-pack graphics. Alongside the stills, I’d like a handful of simple looped animations (think arm wave, sparkle-filled reveal, quick spin) so our website headers and Instagram stories feel interactive. If you prefer to supply the frames only, that works; I can compile them here. Core expectations • 8–10 polished static poses delivered as layered AI or PSD files, CMYK and RGB versions • 3–4 short animations supplied as PNG sequences, GIF...

    $325 Average bid
    $325 Avg Bid
    7 bids

    I’m looking for a researcher-writer who can craft a concise, well-argued paper of roughly 3–4 pages. I’m flexible on the subject area, so if you already have a compelling topic in mind or a field you specialize in, feel free to pitch it—clarity of thesis and depth of analysis matter more to me than the exact discipline. Because I selected “No preference” regarding sources, you’re free to draw on whichever reputable academic journals, books, or data sets best support your argument. Just be sure every claim is properly cited and the bibliography is neat and consistent in a widely accepted style (APA, MLA, Chicago, or another you prefer). To keep things simple, deliver the final piece as an editable Word or Google Doc along with its reference...

    $30 Average bid
    $30 Avg Bid
    38 bids